Scissors-sharpener.



N0- 8 03,689. PATENTED NOV.'7, 1905.

w. A. at J. HARVEY.

' SOISSORS SHARPBNER.

urmo'umn FILED JULY 284904.

WITNESSES:

rnvrrnn STATES ASSIGNORS OF ONE-SIXTH PENNSYLVANIA.

PATENT OFFICE.

WILLIAM A. HARVEY AND JOHN HARVEY, O'F SORANTON, PENNSYLVANIA, TOWILLIAM J. HAND, OF SCRANTON,

SClSSORS-SHARPENER.

Specification of Letters Patent.

Patented Nov. 7, 1905.

Application filed ly 28, 1904. Serial No. 218,566.

States, residing at Scranton, in the county of Lackawanna, State ofPennsylvania, have invented certain new and useful Improvements inScissors-Sharpeners, of which the following is a specification.

Figure 1 is a top plan view of a pair of scissors with our improvedsharpener in position upon one of the blades. Fig. 2 is a sectional viewon the line 2 2, Fig. 1. Fig. 3 is a top plan view of the frame of thesharpener. Fig. 4 is a plan view of the blank from which the frame ofthe sharpener is formed. Fig. 5 is a plan view of the gib.

1 represents the shears.

The blank from which the frame of the fastener is formed comprises acentral portion 3, from each side of which extends ears 4:, adapted tobe bent on the dotted line 5 to an upright position at right angles tothe central portion 3.

6 is a plate extending from the one end of the central portion 3 of theblank, bent to an angle less than a right angle to the plane of thecentral portion. 7 is a tongue extending from the other end from thecentral portion 3 and in the plane thereof, the extreme point of saidtongue being reduced to form a screwdriver It is thus that the plate 6and the file serve as a handle for the screwdriver.

The plate 6 is provided on one of its edges with a recess 8, while itsother edge is provided with a recess 9 and a cut-away portion 10,between said recess 9 and the edge of one of the ears 4, for a purposewhich will be hereinafter set out.

11 is a gib having suitable arms 12, which extend through the recesses 8and 9, said arms being provided with inturned ends 13, which pass backof the plate 6, as more clearly shown in Fig. *2. The gib 11 is providedwith a central perforation 14., suitably screwthreaded, through whichpasses a set-screw 15, the inner end of the set-screw impinging againstthe face of the plate 6, as clearly shown in Fig. 2. 1

16 is a suitable sharpening medium, which for purposes of illustrationis shown as a file secured to the rear face of the plate 6 by means ofthe gib 11, the inturned portions 13 of the arms 12 of said gib holdingthe said file firmly against the face of the plate 6 when the said screw15 is firmly impinging against the face of the plate 6.

In the use of our invention the sharpener is drawn back and forth alongthe blades of the scissors, and the construction of the sharpener issuch that an excellent bearing of the shank or central portion 3 of thesharpener against the side of the blade'is assured. This insures auniform retention of the angle which the cutting-surface of the fileforms on the'cutting edge of the shear-blade.

It is important in sharpening a scissorsblade that the angle at thecutting edge of the blade be uniform throughout. The anle of the file 16with reference to the under face of the central portion is such thatwhen the central portion 3 is fiat against the inside of thescissors-blade, as shown in Fig. 2, the file is in position to give thecutting edge of the scissorsblade the proper angle, and as a largemajority of those called upon to use shears and scissors are of thefemale sex and as they are not particularly skilled in the sharpening ofscissors this feature is of importance.

To facilitate the use of the invention, one may stick the point of theshear-blade into a convenient piece of woodwork, grasp the han dle ofthe blade firmly, whereupon the operator may exert considerable pressureto hold the blade firmly in one position while rubbing the sharpenerback and forth over the blade.

It'will be noted that in the use of this invention it is designed thatthe shears or scissors be retained in a fixed position while thesharpener is rubbed back and forth over the cutting edge.

It frequently happens that the screw 17, upon which the scissors-bladesare pivoted, becomes loosened, in which event the screwdriver extension7 is a very convenient adjunct to the sharpening device, and at the sametime this screw-driver extension forms an increased surface upon whichthe finger of the operator may rest to assist in pressing the centralportion 3 against the blade of the scissors, it being intended that thefinger of the operator while using the sharpener be positioned upon thecentral portion 3 between the lateral ears 1, the point of the fingerresting against the lower portion of the plate 6. The cut-away portion10 in one side of the plate 6 enables the operator to draw the fileclose into the corner formed at the angle of the blades.

What we claim, and desire to secure by Letters Patent, is

l. A scissors-sharpener comprising a blank having a central portion, apair of lateral side ears at an angle to the central portion, and anoutwardly-inclined end plate extending from that face of the centralportion from which the lateral ears project; and a sharpening mediumsecured to the inclined end plate and extending beyond the opposite faceof the central portion.

2. A scissors-sharpener comprising a blank having a central portion, apair of lateral side ears at an angle to the central portion, and anoutwardly-inclined end plate having a recess on each side and a cut-awayportion on one side below the recess and extending from that face of thecentral portion from which the lateral ears project; a gib fitting inthe recesses in the end plate; and a file held by said gib on theoutwardly-inclined end plate so as to project from the opposite face ofthe central 25 plate.

3. In a scissors-sharpener, the combination with a frame comprising acentral portion, a tongue in the plane of and integral with said centralportion, laterally-extending ears on each side of the central portion,an inclined end plate integral with the front edge of the centralportion, each side of the end plate having a recess, a cut-away portionin one of the sides of said plate below said recess, of a gib havinghooked ends constructed to pass through the recesses in the side of saidplate, a set-screw secured in said gib and impinged against said plate,and afile clamped to said plate by means of the hooked ends of 0 saidgib.

The foregoing specification signed this15th day of July, 1904.

WM. A. HARVEY. JOHN HARVEY.

In presence of HERBERT L. TAYLOR, WM. J. HAND.

